When a STA has authenticated to an AP (AP-1), but still maintains a connection with another AP (AP-2), what is the state of the STA on AP-1?

When a STA has authenticated to an AP (AP-1), but still maintains a connection with another AP (AP-2), what is the state of the STA on AP-1?
A . Transitional
B . Unauthenticated and Unassociated
C . Authenticated and Unassociated
D . Authenticated and Associated

Answer: D